Trolley pole



J. A. SANNER.

TROLLEY POLE.

APPLICATION FILED JULY 15,1922.

Patented Oct. 3, 1922.

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JOHN A. fiAIJNEIt, 02 PAGE, "WEEi'l VIRGINIA.

TI/GLLEY POLE- Application filed July 115,

T0 aZZ IO/7107.72 it may concern."

Be it known that I, J 0H1: A. SANNER, a citizen of the United States, residing at Page, in the county of Fayette and State of lVest Virginia, have invented certain new and useful Improvements in Trolley Poles, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to certain improve ments in trolley poles and has relation more particularly to a device of this general character especially designed and adapted for use in connection with mine locomotives and it is an object of the invention to provide a pole of this general character having novel and improved means whereby the same can be shortened as required and which is of par- .ticular advantage in a restricted Another object of the invention is to provide a novel and improved device of this general character comprising two sections connected for sliding movement one lengthwise of the other together with means for holding said sections in extended relation and wherein means are provided to limit the relative movement of said sections in opposite directions.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved trolley pole whereby certain im portant advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more :Iully set forth.

The novel features of my invention will hereinafter be definitely claimed.

in order that my invention may be better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein:

Figure 1 is a view in side elevation illustrating a trolley pole constructed in accordance with my invention with the sect-ions thereof extended;

Figure 2 is an enlarged fragmentary view I of my improved trolley pole as herein disclosed with the sections retracted; and

Figure 3 is a sectional view taken substan tially on the line S3 of Figure 2.

As herein disclosed, T denotes a trolley pole particularly adapted for use with mine locomotives and which comprises two sec- 1922. Serial No. Waist.

tions 1 and 2, the adjacent end portions of which being in overlying relation. The opposite faces a of the sections 1 and 2 are flattened so that said faces a when in overlying relation will have close contact one with the other and at the same time hold the sections 1 and 2 against relative lateral or rotary movement.

Extending along the outer face of the inner end portion of each of the sections 1 and 2 is an elongated metallic strip 3 herein disclosed as integrally formed with a sleeve or cuff i, said strip 3 and cuff at being secured to the section 1 or 2 by the rivets 5 or otherwise as maybe preferred. The cuff or sleeve 4 is positioned immediately adjacent to the inner end of the section 1 or 2 and has freely and slidably disposed therethrough the other of said sections. The outer end portion of the member 3 terminates in an outstanding lip or lug 6 with which the cud or sleeve at of the co-acting section of the pole is adapted to contact so that the inward relative movement of the sections 1 and 2 is limited. The cuffs or sleeves A} contact one with the other to limit the outward relative movement of the sections.

When the sections 1 and 2 are at their limit of outward movement and which is their normal adjustment, it is of advantage to provide a means to lock said sections in such relation and as herein disclosed one of the cuffs or sleeves i has pivotally engaged therewith a latch 7 which is engaged with an outstanding headed member 8 carried by the second cuff or sleeve 1- whereby the sections 1 and 2 are effectively locked. and held in their extended relation.

l Vhen it is desired to shorten the pole as in a restricted passageway, it is only necessary to disengage the latch 7 from the memher 8 to permit the sections 1 and 2 to be moved inwardly one relative to the other.

This adjustment of the pole is of particu lar advantage in connection with a mine locomotive as it permits the pole to be turned without kneel-ting down slate or the like which would otherwise be liable to fall upon the operator as now occurs with frequency, resulting in injury and oftentimes death.

From the foregoing description it 1s thought to be obvious that a trolley pole constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it Will also be obvious that my invention is susceptible of some change and modiiication Without departing 'ifr m the principles and spirit thereof and for this reason I do not Wish to be understood as limiting myself to the precise arrangement and iorried by said sleeves for locking the sections against relative movement 2. A trolley pole comprising two sections having their inner end portions in overlying relation, a cuff carried by the inner end portion of each of the sections through Which the inner end portion of the second section is slidably disposed, the cuffs of the sections contacting to limit the outward relative movement of the sections, each of said sections having extending therefrom an elongated member provided With an outstanding lug to limit the relative inward movement of the sections.

In testimony whereof I hereunto atiix my signature.

JOHN A. SANNER. 

